.auth-container {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.auth-card {
  background: rgba(30, 41, 59, 0.85);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  box-shadow: var(--shadow-xl);
  padding: 32px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.auth-header {
  text-align: center;
  margin-bottom: 24px;
}

.auth-title {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
  letter-spacing: -0.025em;
}

.auth-subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  font-weight: 400;
}

.auth-footer {
  margin-top: 24px;
}

.divider {
  position: relative;
  text-align: center;
  margin: 20px 0;
}

.divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-color);
}

.divider span {
  background: rgba(30, 41, 59, 0.85);
  padding: 0 12px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  position: relative;
  z-index: 1;
}

.social-auth {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.social-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.social-btn:active {
  transform: translateY(0);
}

.google-btn:hover {
  border-color: #4285f4;
}

.github-btn:hover {
  border-color: #333;
  background: rgba(51, 51, 51, 0.3);
}

@media (max-width: 480px) {
  .auth-container {
    max-width: 100%;
  }
  
  .auth-card {
    padding: 24px 20px;
    border-radius: 12px;
  }
  
  .auth-title {
    font-size: 24px;
  }
  
  .auth-subtitle {
    font-size: 14px;
  }
}